According to an article in the Journal of Immunotoxicology entitled Theoretical aspects of autism: Causes–A review, - Ratajczak says that “Documented causes of autism include genetic mutations and/or deletions, viral infections, and encephalitis [brain damage] following vaccination [emphasis added]."

Therefore, autism is the result of genetic defects and/or inflammation of the brain.”

The article also discusses the potential vaccine-related culprits, including an increasing number of vaccines admitted in a short time period: “What I have published is highly concentrated on hypersensitivity," Ratajczak said in an interview.“